Question: Who is the Louis Pasteur's student?
Paraphrase: Who is the Louis Pasteur's understudy?
SPARQL (Wikidata):  select distinct ?sbj where { ?sbj wdt:P1066 wd:Q529 . ?sbj wdt:P31 wd:Q5 } 
Answer: Pierre-Paul Émile Roux, Charles Friedel, Charles Chamberland, Philippe Édouard Léon Van Tieghem, Ulysse Gayon